Machine for cooling glue and allied substances.



K. UPTON.

MACHINE FOR COOLING GLUE AND ALLIED SUBSTANCES.

APPLICATION FILED DEC.20. 1915- 1 ,237,587. Patented Aug. 21, 1917.

. 8 SHEETS-SHEET 1.

K. UPTONJ MACHINE FOR COOLING GLUE AND ALLIED SUBSTANCES.

8 SHEETSSHEET 2.

Patented Aug. 21, 1917.

APPLICATION FILED DEC.20, 1916- K. UPTON.

MACHINE FOR COOLING GLUE AND ALLIED SUBSTANCES.

APPLICATION FiLED 050.20, 1916.

1 7 Patented Aug. 21, 1917,

8 SHEETS-SHEET 3- A? m 9 o 9 m a UPTON.

MACHINE FOR COOLING GLUE AND ALLIED SUBSTANCES. APPLICATION FILED 0c .20v I916.

1 237,587. Patented Aug. 21, 1917.

8 SHEETS-SHEET 4.

K UPTON MACHINE FOR COOLING GLUE AND ALLIED SUBSTANCES.

APPLICATION FILED DEC.20, I916.

Patented Aug. 21, 1917.

8 SHEETSSHEET 5.

K. UPTON.

MACHINE FOR COOLING GLUE AND ALLIED SUBSTANCES.

APPLICATION FILED DEC.20 I916.

Patented Aug. 21, 1917.

8 $HEETSSHEET 6.

K. UPTON.

MACHINE FOR COOLING GLUE AND ALLIED SUBSTANCES.

APPLICATION FILED DEC.20. 191s.

Patent-ed Aug. 21, 1917.

8 SHEETSSHEET 7.

- F'i 2a K. UPTON.

MACHINE FOR COOLING GLUE AND ALLIED SUBSTANCES.

APPLICATION FILED ;.20v 1916.

Patnted Aug. 21, 1917.

8 SHEETSSHEET 8- 0 0 MIG! KING UPTON, OF MARBLEHEAD, MASSACHUSETTS.

MACHINE FOB COOLING GLUE AND ALLIED SUBSTANCES.

Specification of Letters latent.

Patented Aug. 21, 1917.

Application filed December 20, 1916. Serial No. 188,093.

To all whom it may concern:

Be it known that I, KING UPTON, blehead, in the county of Essex and State of Massachusetts, a citizen of the Unlted States, have invented a new and useful Imrovement in Machines for Cooling Glue and Allied Substances, of which the following is a full, clear, and exact descript on, reference being had to the accompanying drawings, forming a part of this speclfication, in explaining its nature.

The invention relates to a machine for cooling and otherwise treating glue, gelatm and allied substances preparatory to drying.

The object of the invention is to obtain in a machine of the above character the combined advantages of speed, efiiciency and of Mareconomy of operation and also adaptability which is much to be desired in a machine of the present kind.

The invention can best be seen and understood by reference to the drawings, 1n which Figure 1 is av general view showing the entire machine in side elevation, several parts being shown in section.

Fig. 1 is a longitudinal cross section of the cooling tank showing a slightly modified construction.

Fig. 1 shows mainly in end elevation certain slightly modified details of construction to which special reference will later be made.

Fig. 2 is a cross vertical section through the center of the cooling wheel.

Fig. 3 is a view and partly in longitudinal section of the top of the cooling wheel, the feed and other associated parts.

Fig. 4: is the same as Fig. 3, exceptmg that the parts there shown have a slightly modified arrangement in accordance with the adaptability of the machine, as will later be explained.

Fig. 5 is a front elevation of a portion of the feed, shown, also, partly in longitudinal section.

Fig. 5 is a view partly in longitudinal section and partly in elevation of a slightly modified portion of the feed, to which special reference will later be made.

Fig. 6 is an elevation of a slightly modified form of feed.

Fig. 7 is an enlarged side elevation of a portion of the machine shown in Fig. 1.

Fig. 8 is a plan of a portion of the net partly in side elevation carrier, afterward to be referred to, and

associated parts.

Fig. 9 is also a plan of a portionv of the net carrier with a net thereon and associated therewith a device for moving the net on the carrier, the device being shownin operative position.

FFi 10 is a section on the line 10-10 of Fig. 11 is a section on the line 1111 of Fig. I

Fig. 12 is an enlarged longitudinal vertical section of a portion of the net carrier, nets thereon, and other associated parts including the cutter shown in an engaging position. 1

Fig. 13 is the same as Fig. 12, excepting that the disposition of certain of the parts there shown is changed and the cutter is shown in its disengaging or normal position.

Referring to the drawings 1 represents a receptacle, afterward to be referred to as the primary container, in which the glue to be cooled is first placed.

Leading from this primary container is a pipe connection 2 which connects with a pump 3 by which the glue is drawn from the container and forced through a pipe connection 4 into a secondary container 5 from which it is fed onto a rotary cooling wheel 6, as will later be more fully explained.

The rotary cooling wheel 6 comprises a wheel of relatively large diameter and considerable width having a channeled rim 7 of metal or other suitable cold-conducting material (see Fig. 2). The wheel is provided with trunnions 8, 8 by which it is mountedto turn within bearings 9 on the bed or frame 10 of the machine. The glue is de posited to lie in a thin sheet upon the channeled peripheral surface of the wheel and this surface is cooled by any suitable refrigerating fluid such as ammonia gas or cold brine passed through a series of coils 11 for obtaining continuous circulation by the passage of the fluid through the trunnions 8 which are provided with channels 13. The fluid is introduced on one side of the wheel through one of its channeled trunnions by means of an inlet pipe 14, and makes exit from the other channeled trunnion through an outlet pipe 15. The connection between the inlet and outlet pipes and the respective trunnions is made by a suitable connection 16 of well known character which permits of the rotation of the wheel and trunnions relatively to the fluid inlet and outlet pipes 14 and 15 which remain fixed.

The wheel is turned from a main driving shaft 18 on which is arranged a pulley or sprocket 19 having a belted or chain connection 20 with a pulley or sprocket 21 arranged on a shaft 22. Arranged upon the same shaft 22 is a pinion gear 23 meshing with a gear 24 on a shaft 25. On the shaft 25 is also arranged a pinion gear 26 which engages a gear 27 fixed to one of the trunnions of the wheel (see Figs. 1 and 2).

During the passage of the glue from the primary to the secondary'container and before its application to the wheel the glue is initially cooled. Such effect is obtained by the passage of the pipe 4 through a cooling tank 30, the pipe being preferably bent to have a series of coils 31 within this tank. Water is introduced into the tank through a pipe 32 from any suitable source of supply and the temperature of the water within the tank, is controlled by the introduction of steam through a pipe 33. Each of the water or steam pipes 32 and 33 is provided with 1 valves 34 for controlling the passage of water or steam through them, and in practice the water within the tank is maintained at a constant temperature by means of a thermostatic device (not shown) connecting with the respective valves, water and steam being introduced as need be to maintain the water within the tank at such constant temperature as may be desired. Should the glue become so cooled in the coils 3 as not to flow freely a quick release is provided by means of steam passed through a pipe 35 extending through the interior of the coils and preferably through that portion of the pipe 4 between the coils and the secondary container 5 (see Fig. 1).

The secondary container 5, from which the glue is. fed onto the rotary cooling wheel, is such'as to secure a normal uniform pressure within the connections or feed leading from the secondary container and through which the glue is fed onto the wheel, thereby regulating and equalizing the flow of glue onto the wheel. The adaptation of the secondary container and parts incidental to it permits, also, of adjustment or change in the pressure of glue through the feed, thereby regulating the amount of glue deposited upon the wheel. This efiect is obtained in the following manner: The secbe changed both in relation to the top .mary contalner 1. Each of the branch pipes 36, 37, 38 is controlled by a valve 40. Any desired level of glue in the standpipewithin the range provided for is obtained by 7 opening the valve in the branch pipe opposite the point where the level is desired to be attained and closing the valve in such branch pipe or pipes as may lie below the point of the desired level. The consequence is that the glue introduced into the pipe cannot rise above the level of the entrance to the branch'pipe which is open, any excess glue introduced into the standpipe passing out through the open branch pipe and thence back through the connection 39 into the primary container.

In order to revent air entering the glue and filling it w1th small bubbles, thereby disfiguring and otherwise injuring the product, as it might otherwise do, it will be observed that the pipe 4, which connects with the standpipe, connects with the side thereof at a point below the lowest level of glue that can be maintained within the standpipe, while the return pipe 39 leading back into the primary container discharges into this container at a point just adjacent the bottom, and accordingly well below the level of glue contained in it.

In Fig. 1 a slightly modified arrangement is shown in that the return pipe 39 connects directly with the pipe 21eading to the pump,

from the secondary container passes directly to the pump with the glue drawn from the primary container with the advantage that the partially cooled glue is kept continuously in circulation without entering the primary container.

From the secondary container or standpipe 5 the glue is fed onto the rotary cooling wheel through a feed comprisin a pipe fixture 42. This feed or fixture is 0 an adj ustable character by which its position may surface of the coolin wheeland also to a belt 43 on which the l ne sheet is deposited after being stripped f rom the wheel, and which operates to carry the sheet to a point where it is cut into strips and these strips laid upon racks for purposes of drying, as is customary in the present type of machine.

The construction and adaptation of the feed can better be understood by 'first referring to the-carrier belt 43.

This belt is an endless belt of substantially the same width as that of the cooling wheel. At its inner and outer ends the belt renders around pulleys 46 and 47, re ectively. The pulley 46 at the inner end 0 the belt is arranged above the top of the cooling wheel. It turns within suitable bearings mounted to slide within ways 49 formed upon a portion 50 of the frame of the machine. These ways Y are preferably slightly curved ways and are of such extension as will permit of the pulley 46 being moved along an arc extending on both sldesof the vertical center of the machine (see Figs. 1, 3 and 4).

The pulley 47- isa stationary pulley and 'is mounted upon an auxiliary frame structure 52, which also supports other elements of the machine later to be referred to.

- words, ner end of the belt peripheral surface of the cooling wheel to- The belt 43 is further arranged to pass around a number of idlers 55 arranged upon the respective frames according to their location, and also around a pulley 56 arranged upon a shaft 58 turning within suitable bearings (not shown) on the auxiliary frame 52. Arranged upon this same shaft 58 is a gear 59, and the belt is driven by power applied to this gear through a connection 60 which connects with a sprocket 61 on the shaft 25, which forms a, part of the driving mechanism. for the cooling wheel, as before described.

Provision is made to permit of the lengthening and shortening of the belt, or, in other for changing the location of the inwith relation to the top which the inner end of the belt is adjacent, as follows: A loop 62 is formed in the belt -by passing it around an idler pulley 63 which turns within suitable bearlngs (not shown), which slide within ways 64 formed upon the auxiliary frame structure 52. By sliding the pulley 63 in and out along these ways the carrier belt may be lengthened or shortened and the inner end thereof arranged as may be desired in proper relation to the top surface of the cooling wheel.

As will later be explained when reference is made to the operation of the machine, the cooling wheel is turnable in either a forward or reverse direction,-and the inner end of the belt 43 is arranged in relation to the wheel according to the direction of its turning. In other words, in the direction shown in Fig. 1 the wheel is turning counterclockwise and the carrier belt is so arranged that its inner end will lie forward of the vertical center of the wheel, while in Fig. 4 the wheel is shown turning with a clockwise movement and the belt is 50 arranged or lengthened that its inner end lies adjacent the wheel to the rear of its vertical center. In either event, irrespective'of the location of the in ner end of the belt, the glue is taken off the coolin wheel and directed onto the inner end 0 the belt by means of a doctor 67 fixed in a suitable manner to the frame 50 of the machine. The form of the doctor will vary slightly depending upon the direction the cooling wheel is turning and the work to be performed by the doctor. In accordance with the operation of the machine shown in Fig. 1 where the glue is taken off the wheel turning with a counterclockwise movement, the doctor is curved soas to change the direction of the glue sheet as it is taken off the wheel, and directed upwardly around and onto the inner end of the belt. In the construction shown in Fig. 4 where the wheel is having a clockwise movement, the doctor is formed simply to strip the glue sheet from the wheel and permit of the sliding of the frame of the machine and forming, as

it were, a part of the doctor. These rolls, however, if need be, may be driven rolls although under ordinary conditions a positive driving of the rolls is not necessary.

' The doctor 67, in addition to performing its ordinary function of removing the glue from the wheel, is provided with a channeled or chambered interior 71 for containing water, which may be directed into the doctor in any suitable manner (not shown) and maintained therein under slight pressure. The water directed into the doctor is directed out of the same through a series of small openings 72 just adjacent the cutting edge of the doctor so that it may slightly lubricate the under side of the glue sheet stripped from the wheel by the doctor so that the sheet will not stick to the belt as it might otherwise do under certain climatic conditions. The water directed through the doctor facilitates, also, the ac-' tion of the doctor in stripping the glue from the cooling wheel.

For the further purpose of preventing objectionable adhesion between the glue sheet and the carrier belt, there is associated with the belt a doctor 7 3 fixed to the frame of the machine and lying in close proximity to" the belt so that the sheet will ride over it. The doctor 73 is provided with a channeled or chambered interior 74 for containing water, which may be directed into it in any suitable manner (not shown), and maintained therein under slight pressure. The doctor is further provided with a series of small openings 75 in the top thereof through which the water is directed from the interior of the doctor against the under side of the glue sheet for lubricating its under surface, thereby preventing objectionable adhesion, as aforesaid.

The feed 42 is an adjustable feed, adjustable in the sense that the glue led through it is deposited upon the top peripheral surface of the cooling wheel at a point dependent upon the direction of the wheels rotation and consequently upon the relative positions of the inner end of the carrier belt and doctor, and also at a point dependent upon the character of the glue.

The secondary container or standpipe 5, with which the feed connects, is located in a plane above the top of the cooling wheel so that the glue may gravitate therefrom through the feed onto the channeled peripheral surface of the wheel. The feed comprises a short pipe section 80 which connects with the bottom end of the container or standpipe 5. The pipe has within it a joint 81 in order that the lower portion of the pipe may turn in relation to the upper portion thereof. In the upper portion of the pipe is a cook 82 for controlling the flow of the glue from the container. From the lower end of the pipe section 81 the feed extends to the right and left by branch pipes or sections 83 and 84 respectively. Depending from the outer ends of these sections are sections 85 and 86, respectively, which are joined by a section 87 that forms the feed proper and the under side of which is provided with a slot 88 through which the glue passes onto the wheel. The pipe sections 83 to 87, inclusive, collectively form an inclosed fixture, and the arrangement of the pipe sections comprising this fixture is such that the inclosure will be of suflicient size to permit of the passage through it of the inner end of the carrier belt 43, as shown in Fig. 4. In order to provide for the adjustment of the feed and not interfere with the carrier belt, the end of the inclosed fixture is removable and accordingly on one side of the fixture telescopic joints 89 are formed in the respective pipe sections 84 and 87.

A double feed is provided in the sense that the glue may be deposited'upon the wheel at separate points, one forward of the other, at the same time. there connects with the pipe 81, to extend at right angles therefrom, a pipe section 90,. from the end of which depends a short pipe section 91 and to this section is secured an inclosed fixture identical with the one indicated by parts 83 to 89, inclusive. Attention is also directed to the fact. that the Accordingly pipe 90, which connects the two feeds, is a telescopic pipe, permitting of the adjustment of the secondary feed in relation to the primary feed and to the top surface of the cooling wheel.

It is desirable in the operation of the feed that the glue be deposited upon the upturn ing side of the wheel instead of upon the downturning side, as the glue has a better chance to set and not run upon the Wheel.

In the construction indicated the primary feed, or that first referred to, is a substantially fixed feed at the exact apex of the wheel, while the secondary feed is an ad justable feed, adjustable in the sense that it can be moved to assume different positions relatively to the peripheral surface of the wheel, and also in the sense that it can be turned to feed upon the upturning side of the wheel dependin upon the direction of the wheels rotation compare Figs. 3 and4) When the secondary feed is turned the primary feed will turn with it, both feeds turning on the joint 81, and this may be-accomplish'ed without interfering with the carrierbelt by removing the ends of the fixtures inclosing the belt.

In Fig. 6 there is shown a slightly modified form of double feed in which both feeds are adjustable in relation to the peripheral face of the-wheel. Here the pipe 80 is provided with branch pipes 92 and 93, respec tively, extending at right angles thereto and in opposite directions. Both these pipes are made telescopic, and from the turned ends of the pipes there depend fixtures comprising parts identical with the parts 83 to 89, inelusive, of the construction first referred to. In this modified feed not-only are both feeds adjustable in the sense that their positions may be varied in relation to the top surface of the wheel, but the feeds may be turned on the joint 81 to assume different positions as occasion may require. 1

For the purpose of assisting in evenly depositing the glue upon the wheel the pipes 85 and 86 are each preferably provided with With the type of feed indicated the glue may be deposited upon the top surface of the wheel at practically any desired point in relation to the inner end of the carrier belt 43. The belt, can also be adjusted-without interfering with the feed.

The sheet of glue home by the carrier belt 43' is cut into strips by a cutter 95 .and

the strips deposited upon drying nets 96 of.

' Fig. 12) will drop away from the roll onto the usual type. The nets are borne by a net carrier 97 (see Fig. 7). In order that thecut strips of-glue may be properly deposited upon the drying nets the net carrier and cutter must have a proper relative operation, both to one another and to the carrier belt 43. -As will later be more fully explained, the net carrier is operated to have the same relative movement as the carrier belt and the cutter is operated at determinate intervals from off the net carrier.

The net carrier 97 comprises a pair of spaced endless chains 99, 99. These chains are parallelly arranged, each chain being arranged to turn on sprocket wheels 100, 100, which are mounted upon shafts 101, 102, respectively, turning in suitable bearings on the frame 52 of the machine. The chains are spaced from one another a distance substantially equal to the width of the drying nets 96 so that the nets may rest thereon and be carried thereby or be movable along the chains. The endless chains comprising the net carrier are arranged to extend fore and aft below the outer end of the carrier belt so that the nets will be carried'to successively pass below the'outer end of the belt for receiving the glue sheet as it renders off the same. The net carrier is also so far removed vertically from the outer end of the belt that an appreciable space, preferably Ger 8 inches, w1ll separate the outer end of the belt from the nets (see Fig. 12). The net carrier is operated from the driving mechanism to turn at substantially the same rate of speed as the carrier belt by means of intersecting gears 103, 104, respectively, one of which is arranged upon the shaft 58 of --the belt-driving mechanism and the other upon the sprocket shaft 101 of the net carrier.

The cutter 95 comprises a bar 106 presenting a cutting edge 107. The bar 106 is carried by arms 108 mounted to turnon trunnions 109 on a U-shaped support 110. The

arms 108 are maintained in a normal upright vertical position above their pivotal connection with the trunnions by means of overweighted arms 112 fixed to them. The arrangement of the parts is such that the cutter will normally lie just forward of the outer end of the carrier belt or of the pulley or roll 17 around which the outer end of the belt turns and above the axis of this roll. From this normal position the arms 108 and cutter bar carried by them are turned so that the cutter will engage and sever the glue strip during its passage upon the carrier belt around the roll 47. I prefer that the sheet be severed at a point lying slightly above the axis of the roll 17 so that the end or flap 115 of the severed strip of glue (see the net.

The further arrangement of the parts is such that the cutter will be operated at (iathe net carrier and after its operation the cutter be immediately released to assume its normal position. This effect is obtained by fixing to the arms 108 bearing the cutter bar, cams 117. These cams are c 'sposed in the normal position of the cutter to lie in the paths of studs 118 which project outwardly and laterally from the sides of the upper running portions of the net-carrying chains. As these portions of the chains move forward during the operation of the net carrier the studs carried by them will engage the cams 117 of the cutter and thereby turn the cutter for operating it. While the net carrier has a relativel slow movement the form of the cams 117 1s such that when the cams are struck by the studs the cutter will first be slowly moved into an engaging position for cutting the sheet and then-receive a quick impulse for performing theactual cutting operation and asquickly be released -terminate intervals during the operation of to assume its normal position by the studs riding ofl the cams (see Figs. 11 and 12).

It Is advisable that the cutter be adjustable both vertically and in a lateral direction toward oraway from the outer end of the carrier belt. The vertical adjustment of the cutter or cutter bar together with the adjustment of the overweighted arms 112 and cams 117' of the cutter is obtained by pivoting the overweighted arms 112 on the trunnions 109 and then securing the arms 108 bearing the cutter bar and also the cams 117 to the ends of the overweighted arms 112 above the trunnions, the connection being secured by a bolt and nut connection 120,

which passes through slots formed in the arms 108 and cams 117, permitting of the adjustment thereof (see Fig. 11). The lateral adjustment of the :cutteris secured by mounting the U-shaped'support 110 upon a block 121 which is slidably mounted upon an anvil or base 122 on a bracket or support 123 on the frame 52 of the machine. Adjustment is secured and maintained by a connecting screw 124 and nuts 125 on the screw, both operating in a conventional manner (see Fig. 12).

The glue is deposited upon the drying nets in successive order, one net being borne to immediately follow the other on the net carrier. Owing to the fact that the nets are moving at the'same rate of speed as the sheet of glue, which is being fed continuously from the carrier belt 43, provision is necessarily made to prevent the glue from being deposited upon the end frame pieces 126 of the nets (see Figs. 12 and 13), the said end pieces abutting one another during the feed of the nets. Such provision conslsts in an intermittent movement imparted to the nets thereon in an amount substantially equal to the width of the two abutting end frame pieces 126 of the nets. The movement takes.

place immediately after the operation of the cutter. Afterthe cutting of the sheet of glue the severed end or flap 115 of the strip already deposited upon the forward net of those on the carrier will fall thereon (see Fig. '12). An appreciable interval then elapses before the end 127 of the sheet continuin to be fed by the carrier, will contact with t e net following owin to the space of lazy tongs are pivotally secured by connections 131 to a block 132 lying between the under runnin portions of the chains of the net carrier. Ihe arms are provided with thickened inner end portions 134 (see Fig.

10) where they make their pivotal connection with the block 132, and the extension of the arms therefrom is such that the arms may slip by one another and occupy either a collapsed position as shown,in Fig. 8 or an open, forward, extended position as shown in Fig. 9. The arms are provided with upturned, outer ends 135. The block 132 rises to a point about flush with the under running portion of the chains of the net carrier and the arms together with their upturned ends 135 lie below the plane of the nets arranged upon the net carrier. The arrangement of the block 132 is also such that the arms when retracted will lie back of the net following that upon which the glue sheet or strip is being deposited (see Fig. 7) at the time when the nets upon the carrier have been moved to a position to be moved forward, which movement immediately follows the operation of the cutter, as above described.

As stated above, the upturned ends 135 of the arms 130 lie below the frames of the nets. In order that the upturned ends of the. arms may be extended to engage the frames of the nets for moving them as the arms are extended, the ends are each provided with .a finger 137 pivotally secured to them. Each of the fingers is maintained in a normal upright position by a dependent tail piece 138 which bears against the back of the arm to which the finger is secured and which acts as a stop for holding the finger rigidly in place when thrown into engagement with the rear ends of the frames of the nets upon the extension of the arms 130. The fingers 137 are thus pivotally secured to the ends of the arms to permit of the nets being placed upon the carrier in proper mama?- succession. As any new net is placed upon the net carrier it will be moved forward by the net carrier over the fingers, which will not interfere with the frame of the net bought into contactwith them, as the fingers will turn, permitting the frame of the net to be idle over them after which the fingers will assume their normal upright position.

The arms 130 are extended "at proper time relatively to the operation of the cutter for moving the nets forward by means of studs 140 having turned ends 141 on the lower running portions of the chains. As the chains are turned these studs will be brought into contact with the front edge 142 of the block 132 which is beveled, the studs will ride upwardly over the beveled edge of the block and the turned ends 141 of the studs will enter grooves 143 in the block and run of the arms 130 they will have drawing engagement therewith and thereby operate to extend the arms, which operation continues until the studs slip off the ends of the arms. The arms are extended against the tension of a spring 147 secured to the block 132 and bearing against the rear ends of the arms and operating when the arms are released from the action of the studs to immediately restore the arms to their original collapsed position.

The arms 130 are preferably extensible arms in order to provide for their. adjustment, for which purpose the arms are made in separate slotted sections held together by means of a bolt and nut connection 148. The adjustable positioning of the arms is also further provided for by mounting the block 132 upon an anvil or base 149 on the bracket or support 123 on the frame 52 of the machine, adjustment being secured and maintained by a connecting screw 150 and nuts 151 on the screw,-both operating in a conventional manner (see Fig. 7).

In the general operat'on of the machine the glue is forced by t e pump from the primary container 1 through the cooling tank 30 into the secondary contalner or standpipe 5 from which it passes onto the cooling wheel through the feed 42. The deposit of glue upon the wheel is regulated by the head of glue maintained in the standpipe, and this through closure of one or the other of the valves 40 in the pipe connections leading out of the standpipe. All excess glue which is introduced into the standpipe beyond that required to maintain direction as indicated in Fig. 4. The di-- mama-r the desired head therein is returned to the primary container from the cooling wheeL' The glue is -stripped from the cooling wheel The main cooling wheel 6, the carrier belt 43 and the net carrier are all'driven collectively from ofl the main driving shaft 18 at substantially the same rate of speed. The cutter and device for moving the nets on the net carrier are operated from off the net carrier as above described. The carrier belt and net carrier always operate in the direction indicated in Fig. 1. The cooling wheel 6, however, is rotatable, as previously indicated, either in a reverse clockwise direction as indicated in Fig. 1 or in a clockwise rection of the cooling wheels rotation is controlled by the direction of rotation of the main drivingshaft, which direction of rotation is controlled by any of the well known expedients- (not shown). When the cooling wheel is rotating as shown in Fig. 1 the belt or chain 60, which drives the carrier belt, is a crossed belt or chain as there shown. When, however, the cooling wheel is rotated in the direction indicated in Fig. 4 the direction of rotation of the carrier belt is maintained and accordingly the connecting belt or chain must not be a crossed belt or chain, but have a direct drive.

The direction of rotation of the cooling wheel depends essentially upon the character and consistency of the glue. The arrangement indicated in Fig. 1 is the preferred arrangement, inasmuch as it has the advantage that the glue sheet stripped from the wheel is reversed upon the carrier belt. Such reversal of the sheet is accomplished b rather sharply bending the sheet as it is stripped from the wheel by the doctor, but some glues will not permit of this. Therefore it becomes necessary to drive the wheel as indicated in Fig. 4 where the glue sheet is stripped from the cooling wheel and deposited upon the carrier belt without the reversal of the sheet.

The, permitted adjustable fixing of the feed and carrier belt is not only a necessary incident to the direction of the wheels rotation, but the position at which these parts are fixed depends upon the character of the glue and also upon atmospheric conditions.

The glue, might of course be deposited upon the cooling wheel through a single feed. The double feed, however, permits of the glue being deposited upon the wheel in two relatively thin layers instead of in a single layer and therefore the glue is better maintained upon the wheel and has less chance to run, or the reason that the glue is first fed upon the upturning side of the wheel where it has an opportunity to become set and not run, and the second feed of glue is upon that already deposited which as said before, has become sufficiently set to prevent its running.

The machine operates with a continuity of operation, the glue sheet being continuously delivered onto the drying nets. The

positive removal of the sheet from the cooling wheel, which removal is aided by the lubrication of water and also the lubricatlon of the under side of the sheet to prevent its sticking to the carrier belt, facilitates continuity in the operation of the machine. The operating of the cutter by the net car rier and the operating, also, of the device for moving the nets by the netcarrier for changing the positioning of the nets thereon to receive the cut strips, insures a proper application of the strips to the nets, all of which tends to increase the efiiciency of the machine. I

Having thus fully described my invention,

I claim and desire to secure by Letters Pat-- ent of the United States 1. In a machine of the type specified, the combination with a rotary cooling wheel, of a primary container for the glue to be cooled, a secondary container located above said primary container and above the wheel, a feed for the glue from said secondary container on to the wheel, means for forcing the glue from said primary container into said secondary container, .and means whereby the glue may be maintained in said secondary container at a substantially constant level and any excess glue introduced therein be directed back into said primary container.

2. In a machine of the type specified, the

combination with a rotary cooling wheel,

of a primary container for the glue to be cooled, a secondary container located above said primary container and above the wheel, a feed leading from said. secondary container for directing the glue therefrom onto the wheel, means for forcing the glue from said primary container into said secondary container, pipe connections between said primary and secondary containers and connecting with said secondary container at a plurality of points occupied by difl'erent levels of the glue maintained in said secondary container, and otherwise arranged whereby glue may gravitate therethrough from said secondary container into said pri-v maryv container, and means for controlling said pipe connections whereby the glue may be maintained in said secondary container at different levels and excess glue introduced thereto be directed back to be again introduced into said secondary container.

level and any excess glue introduced thereto be directed out of the same, and means whereby glue may be introduced into said container including the excess glue directed therefrom.

4:. Ina machine of the type specified, the

combination "comprising a rotary cooling wheel, a primary container for'the glue to" be cooled, a Y secondary container located .above said wheel and from which the glue is directed onto the wheel, means for leading the glue from secondary container onto said wheel, means whereby the glue may be maintained in said secondary container at a substantially constant level and any excess glue introduced therein be directed out of the same, and means whereby glue may be directed from said primary container into said secondary container including also the excess glue directed out of said secondary container.

5. In a machine of the type specified, the combination comprising a rotary cooling wheel, a container into which the glue is introduced and from which it is directed onto said wheel, means whereby the glue may be maintained in said container at a substantially constant level and any excess glue introduced thereto be directed out of vthe same, and means comprising in part a pump whereby such excess glue may again be directed into said container.

6. In a machine of the type specified, the combination comprising a movable cooling member, a primary container for the glue to be cooled, a secondary container located above the movable cooling member, a feed for the glue from said secondary container onto the movable cooling member, means whereby the glue may be forced from said primary container into said secondary container to enter the same at a point below the level of glue maintained in said secondary container, means whereby the glue may be maintained in said secondary container at a substantially constant level and any excess glue introduced therein be directed back into said primary container to enter the same at a point below the level of glue maintained therein.

7 In a machine of the type specified, the combination with a movable cooling member, of a container for holding the glue to be cooled located above said cooling member, a gravity feed for the glue ;from said container onto said movable coej ling member, means for introducing glue into said container,- and means whereby the glue, may

combination with a movable cooling mem-' ber, of a container for holding the glue to becooled located above said cooling member, a gravity feed for the glue from said container onto said movable cooling member, means for introducing glue into said container, and means whereby the glue may be maintained within said container at any one of a series of levels as desired.

10. In a machine of the type specified, the combination comprising a movable cooling member, a primary container for the glue to be cooled, a secondary container from which the glue is fed onto the cooling member, a pipe connection between said containers by which the glue may be directed from said primary container into said secondary container, means for cooling the glue passing through said pipe, and means whereby heat may also be applied thereto as occasion may require. i

11. In a machine of the type specified, the combination comprising a movable cooling member, a primary container for the glue to be cooled, a secondary container from which the glue is fed onto the cooling member, a pipe connection between said contain ers by which the glue may be directed from said primary container into said secondary container, means whereby an application of cold may be made to a portion of said pipe for cooling the glue passing therethrough, and means whereby steam may be introduced to pass through said portion of the pipe as occasion may require.

12. In a machine of the type specified, the combination with a movable cooling member, of a primary container for the glue to be cooled, a secondary container, a feed from said'secondary container onto said movable cooling member, an initial cooling means, means whereby the glue may be forced from said primary container into said secondary container and be subjected to said initial cooling means before entering said secondary container, and means whereby a portion of the initially-cooled glue may be directed back into said secondary container with other glue directed thereto from said primary container.

13. In a machine of the type specified, the combination comprising a rotary cooling wheel, a container from which the glue is fed onto said wheel, an adjustable feed between said container and the wheel whereby the glue from the container may be directed to pass onto the top of the wheel at either side of the vertical center thereof, and means whereby such adjustment may be effected.

14:. In a machine of the type specified, the combination comprising a rotary cooling wheel, a container from which the glue is fed onto said wheel, an adjustable feed between said container and the wheel whereby the glue from the container may be directed to pass onto the top of the wheel at variable points on either side of the vertical center thereof, and means whereby such adjustment may be effected.

15. In a machine of the type specified, the combination comprising a rotary cooling wheel, a container from which the glue is fed onto said wheel, and a feed between the container and the wheel, said feed having a number of connecting pipe sections comprising in part a fixture adjustably movable over the top surface of said wheel.

16. In a machine of the type specified, the combination with an endless movable cooling member, of means for simultaneously depositing glue thereon at separate points, one in advance of the other.

17 In a machine of the type specified, the combination comprising a4 rotary cooling wheel, a container from which the glue is fed onto said wheel, said container being located above said wheel, and a feed between the container and the wheel, said feed having a. number of connecting pipe sections comprising in part separate glue-distributm fixtures adjustable relatively to one anot er and to the top surface of the wheel.

18. In a machine of the type specified, the combination with an endless cooling member, of a container from which the glue is fed onto said member, and a feed between the container and the member, said feed having a series of cocks through which the glue passes onto the member for insuring an even deposit of glue thereon.

19. In a machine of the type specified, a rotary cooling wheel having a channeled rim of some cold-conducting material, means for depositing glue thereon, and means for cooling the glue deposited upon said wheel, the same comprising a series of refrigerating coils in imm' diate contact with the interior of said rim.

20. In a machine of the type specified, a rotary cooling wheel having a channeled rim of some cold-conducting material, means for depositing glue thereon, means for cooling the glue deposited upon said wheel, the same comprising a series of refrigerating coils 1n immediate contact with the interior of said rim, and a filling of some cold-conducting material interposed between said coils and said rim.

21. In a machine of the type specified, the combination comprising a rotary coolin wheel, means for depositing glue on sai wheel, an endless; carrier belt arranged adacent said wheel, a doctor interposed between said belt and said wheel for removing the glue from the wheel, and means whereby water may be fed through said doctor onto the glue at a point adjacent the cutting edge of said doctor.

22. In a machine of the typespecified, the combination comprising a rotary cooling wheel, means for depositin glue on said wheel, an endless carrier be t arranged adjacent said wheel, a channeled doctor presenting a cutting edge for removing the glue from said wheel, said doctor being provided eral surface of the wheel, and means for carrying said belt whereby the position of the end thereof adjacent the peripheral surface of the wheel may be varied in relation to said surface.

24. In a machine of the type specified, the combination comprising a rotary cooling wheel, means for feeding -glue thereon, a rotary endless carrier belt one end of which is arranged adjacent the top peripheral surface of said wheel, and means for carrying said belt whereby the end thereof adjacent said wheel may be adjustably varied in position on either side of the longitudinal center of said wheel.

25. In a machine of the type specified, the combination comprising a rotary cooling wheel, an endless carrier belt the inner end of which is arranged adjacent the top peripheral surface of said wheel, means for carrying said belt whereby the inner end thereof may lie adjacent said wheel on one side or the other of the longitudinal center thereof depending as said wheel is turned either in a forward or a reverse direction, and an adjustable feed whereby glue may be deposited on the top surface of said wheel in a position dependent upon the changed position of said belt.

26. In a machine of the type specified, the combination comprising a rotary cooling wheel, an endless carrier belt the inner end of which is arranged adjacent said wheel for receiving glue strlpped therefrom, means for carrying said belt whereby the inner end thereof may be moved in relation to the surface of said wheel, a feed for theglue onto said wheel, said feed comprising in part a with openings adjacent the cutting edge fixture by which the inner end of the belt is passed as it is moved in relation to the sur-' face of the wheel.

27. In a, machine of th'e'typespecified, the combination comprising a rotary cooling wheel, means for depositing glue on said wheel an endless carrier belt the inner end of whlch is arranged adjacent the peripheral surface of said wheel, and means for removing the glue from said wheel and depositing it upon said belt, the same comprising a doctor and a series of rolls interposed between the doctor and the belt.

28.-In' a machine of the type specified, the combination comprising a movable cooling member, means for depositing glue thereonto-becooled, an endless carrier belt for receiving the sheet of glue stripped from the movable cooling member, and means for water may be applied to the under side of.

* said sheet on said belt.

30. In a machine of the type specified having a movable cooling member and an endlesscarrier belt for receiving and conveying a sheet of glue stripped from the movable cooling member, a net carrier arranged below the outer end of said belt whereby nets thereon are spaced therefrom, means for operating said cooling member, carrier belt and'net carrier at substantially the samerate of speed, a cutter for dividing the glue sheet into strips at a point above the nets, means whereby the cutter may be operated to divide the sheet after the cut strip has been partly deposited upon a net and whereby the end of the cut strip may fall upon said net after the cutting, and

means for moving the nets along said net carrier immediately after the operation of the cutter whereby the end of the sheet maybecome properly deposited upon the net next succeeding that upon which said out strip I is deposited.

' 31. In a machine of the type specified, the

' combination comprising a movable conveyer for the glue sheet presenting anend over which the sheet is conveyed, a cutter arranged adjacent said end of the conveyer for dividing the sheet into strips as it passes around said end of the conveyer, a movable carrier for nets on wh1ch saldstr1 s are deposited, said carrier being arrange whereby the nets thereon will lie below, and spaced an appreciable distance from, said cutter, means whereby'the cutter may be operated to divide a sheet after the outstripv has been partly deposited upon a net borne by the carrier and whereby the end of the cut strip mayfall upon said net after the cutting, and means whereb said nets may be moved upon the net carrier immediately after the operation of the cutter whereby the end of the sheet may become properly deposited upon the net next succeeding that upon which said out strip is deposited.

32. In a machine of the type specified, the combination comprising a. movable carrier for the glue sheet, a cutter for dividing the sheet into strips, a movable carrier for nets on which said strips are deposited, means whereby said carrier may operate said cutter at determinate intervals during the operation of the carrier, and means whereby the nets upon said carrler may be moved forward'along the same by the movement of the carrier at determinate intervals during the operation thereof immediately following the operation of the cutter.

33. In a machine of the type specified, the combination comprising a movable cooling member, means'whereby glue may be depos-- ited thereon, a movable carrier belt for conveying the glue sheet stripped from said member,-said belt being arranged to present an outer end over which the glue sheet passes, a cutter for dividing the glue sheet into strips, means for pivotally supplorting said cutter in a normal position a jacent said end of the belt but removed therefrom, a movable carrier for nets on which said out strips are deposited, and means whereby said cutter may be moved by said net carrier into an engaging position closely adjacent the sheet of glue passing around said end of the belt,-then operated to out said sheet and afterward be released to assume its normal position.

KING UPTON. 

